Sun, J., G. Teng, Z. Ma, and S. Ju. “In Vivo Monitoring of Magnetically Labeled Mesenchymal Stem Cells Intravascularly Administered in Rat Acute Renal Failure”. Swiss Medical Weekly, vol. 138, no. 2728, July 2008, pp. 404-12, doi:10.4414/smw.2008.12000.